Mercurial > hg > AnnotationManagerN4J
annotate src/main/java/de/mpiwg/itgroup/annotations/restlet/BaseRestlet.java @ 80:4724fc7b4733
add slashes to paths for getRealPath to work with Tomcat 8.
| author | casties |
|---|---|
| date | Mon, 21 Jul 2014 17:28:15 +0200 |
| parents | 25eb2e1df106 |
| children | e3f0613b2f2d |
| rev | line source |
|---|---|
| 18 | 1 package de.mpiwg.itgroup.annotations.restlet; |
| 2 | |
| 70 | 3 /* |
| 4 * #%L | |
| 5 * AnnotationManager | |
| 6 * %% | |
| 7 * Copyright (C) 2012 - 2014 MPIWG Berlin | |
| 8 * %% | |
| 9 * This program is free software: you can redistribute it and/or modify | |
| 10 * it under the terms of the GNU Lesser General Public License as | |
| 11 * published by the Free Software Foundation, either version 3 of the | |
| 12 * License, or (at your option) any later version. | |
| 13 * | |
| 14 * This program is distributed in the hope that it will be useful, | |
| 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 * GNU General Lesser Public License for more details. | |
| 18 * | |
| 19 * You should have received a copy of the GNU General Lesser Public | |
| 20 * License along with this program. If not, see | |
| 21 * <http://www.gnu.org/licenses/lgpl-3.0.html>. | |
| 22 * #L% | |
| 23 * Author: Robert Casties (casties@mpiwg-berlin.mpg.de) | |
| 24 */ | |
| 25 | |
| 18 | 26 import java.io.File; |
| 27 import java.io.FileInputStream; | |
| 28 import java.io.FileNotFoundException; | |
| 29 import java.io.IOException; | |
| 30 import java.io.InputStream; | |
| 31 import java.util.Hashtable; | |
| 32 import java.util.Properties; | |
| 71 | 33 import java.util.concurrent.ConcurrentMap; |
| 75 | 34 import java.util.logging.Logger; |
| 18 | 35 |
| 36 import javax.naming.NamingEnumeration; | |
| 37 import javax.naming.NamingException; | |
| 38 import javax.naming.directory.Attribute; | |
| 39 import javax.naming.directory.DirContext; | |
| 40 import javax.naming.directory.InitialDirContext; | |
| 41 import javax.naming.directory.SearchControls; | |
| 42 import javax.naming.directory.SearchResult; | |
| 43 import javax.servlet.ServletContext; | |
| 44 | |
| 45 import org.neo4j.graphdb.GraphDatabaseService; | |
|
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46 import org.neo4j.graphdb.factory.GraphDatabaseBuilder; |
| 18 | 47 import org.neo4j.graphdb.factory.GraphDatabaseFactory; |
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48 import org.neo4j.graphdb.factory.GraphDatabaseSettings; |
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49 import org.neo4j.kernel.GraphDatabaseAPI; |
| 18 | 50 import org.neo4j.server.WrappingNeoServerBootstrapper; |
| 51 import org.restlet.Application; | |
| 52 import org.restlet.Context; | |
| 53 | |
| 54 import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore; | |
| 55 | |
| 56 public abstract class BaseRestlet extends Application { | |
| 57 | |
| 75 | 58 public static Logger logger = Logger.getLogger("de.mpiwg.itgroup.annotations.restlet.BaseRestlet"); |
| 18 | 59 |
| 60 /** | |
|
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61 * Properties holding consumer keys and secrets. |
| 18 | 62 */ |
| 63 protected Properties consumerKeys; | |
| 71 | 64 public String CONSUMER_KEYS_PATH = "consumerkeys.property"; |
| 18 | 65 public static final String CONSUMERKEYS_KEY = "annotationmanager.consumerkeys"; |
| 66 | |
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67 /** |
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68 * Properties holding server config. |
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69 */ |
| 18 | 70 protected Properties serverConfig; |
| 71 | 71 public String CONFIG_PROPS_PATH = "serverconfig.property"; |
| 18 | 72 public static final String SERVERCONFIG_KEY = "annotationmanager.serverconfig"; |
| 73 | |
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74 /** |
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75 * database instance; |
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76 */ |
| 18 | 77 protected GraphDatabaseService graphDb; |
| 78 public static final String GRAPHDB_KEY = "annotationmanager.graphdb"; | |
| 79 public static final String GRAPHDB_PATH_KEY = "annotationmanager.graphdb.path"; | |
| 71 | 80 public String graphdbPath = "neo4j-annotation-db"; |
| 18 | 81 |
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82 /** |
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83 * database interface server instance. |
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84 */ |
| 18 | 85 protected WrappingNeoServerBootstrapper srv; |
| 86 public static final String GRAPHDBSRV_KEY = "annotationmanager.graphdb.srv"; | |
| 87 | |
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88 /** |
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89 * annotation store instance. |
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90 */ |
| 18 | 91 protected AnnotationStore store; |
| 92 public static final String ANNSTORE_KEY = "annotationmanager.store"; | |
| 93 | |
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94 /** |
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95 * LDAP server URI (for looking up full user names). |
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96 */ |
| 18 | 97 protected String ldapServerUrl; |
| 98 public static final String LDAP_SERVER_KEY = "annotationmanager.ldapserver.url"; | |
| 99 | |
| 50 | 100 public static final String ADMIN_USER_KEY = "annotationmanager.admin.user"; |
| 101 public static final String ADMIN_PASSWORD_KEY = "annotationmanager.admin.password"; | |
| 102 | |
| 18 | 103 /** |
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104 * run in authorization mode i.e. with tokens. |
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105 */ |
| 58 | 106 protected boolean authorizationMode = false; |
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107 public static final String AUTHORIZATION_MODE_KEY = "annotationmanager.authorization"; |
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108 |
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109 /** |
| 58 | 110 * prefix to create uris for tags in store. |
| 111 */ | |
| 112 public static String TAGS_URI_PREFIX = ""; | |
| 113 public static final String TAGS_URI_KEY = "annotationmanager.uris.tags"; | |
| 114 | |
| 115 /** | |
| 116 * prefix to create uris for persons in store. | |
| 117 */ | |
| 118 public static String PERSONS_URI_PREFIX = ""; | |
| 119 public static final String PERSONS_URI_KEY = "annotationmanager.uris.persons"; | |
| 120 | |
| 121 /** | |
| 122 * prefix to create uris for groups in store. | |
| 123 */ | |
| 124 public static String GROUPS_URI_PREFIX = ""; | |
| 125 public static final String GROUPS_URI_KEY = "annotationmanager.uris.groups"; | |
| 126 | |
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127 public static final String ANNOTATIONS_URI_KEY = "annotationmanager.uris.annotations"; |
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128 |
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129 |
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130 /* (non-Javadoc) |
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131 * @see org.restlet.Application#start() |
| 18 | 132 */ |
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133 @Override |
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134 public synchronized void start() throws Exception { |
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135 configure(getContext()); |
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136 super.start(); |
| 18 | 137 } |
| 138 | |
| 139 /** | |
| 140 * Configures the restlet. | |
| 141 * Reads serverConfig, consumerKeys and graphDb config from config files and starts graphDb. | |
| 142 * Uses config from webapp context if already initialized. | |
| 71 | 143 * @param context |
| 18 | 144 */ |
| 71 | 145 protected void configure(Context context) { |
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146 ConcurrentMap<String, Object> attrs = context.getAttributes(); |
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147 ServletContext sc = (ServletContext) attrs.get("org.restlet.ext.servlet.ServletContext"); |
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148 if (sc != null) { |
| 75 | 149 logger = context.getLogger(); |
| 18 | 150 logger.info(getVersion() + " starting..."); |
| 151 | |
| 152 /* | |
| 153 * read config from webapp | |
| 154 */ | |
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155 serverConfig = (Properties) sc.getAttribute(SERVERCONFIG_KEY); |
| 18 | 156 if (serverConfig == null) { |
| 157 serverConfig = new Properties(); | |
| 158 InputStream ps = getResourceAsStream(sc, CONFIG_PROPS_PATH); | |
| 159 if (ps != null) { | |
| 75 | 160 logger.fine("loading config from " + CONFIG_PROPS_PATH); |
| 18 | 161 try { |
| 162 serverConfig.load(ps); | |
| 163 /* | |
| 164 * read serverconfig options | |
| 165 */ | |
| 166 graphdbPath = serverConfig.getProperty(GRAPHDB_PATH_KEY, graphdbPath); | |
| 167 ldapServerUrl = serverConfig.getProperty(LDAP_SERVER_KEY, null); | |
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168 /* |
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169 * uri prefixes |
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170 */ |
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171 if (serverConfig.containsKey(PERSONS_URI_KEY)) { |
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172 BaseRestlet.PERSONS_URI_PREFIX = serverConfig.getProperty(PERSONS_URI_KEY); |
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173 } |
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174 if (serverConfig.containsKey(GROUPS_URI_KEY)) { |
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175 BaseRestlet.GROUPS_URI_PREFIX = serverConfig.getProperty(GROUPS_URI_KEY); |
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176 } |
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177 if (serverConfig.containsKey(TAGS_URI_KEY)) { |
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178 BaseRestlet.TAGS_URI_PREFIX = serverConfig.getProperty(TAGS_URI_KEY); |
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179 } |
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180 if (serverConfig.containsKey(ANNOTATIONS_URI_KEY)) { |
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181 AnnotationStore.ANNOTATION_URI_PREFIX = serverConfig.getProperty(ANNOTATIONS_URI_KEY); |
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182 } |
| 18 | 183 } catch (IOException e) { |
| 75 | 184 logger.warning("Error loading server config: "+e.toString()); |
| 18 | 185 } |
| 75 | 186 logger.fine("config: " + serverConfig); |
| 18 | 187 } else { |
| 75 | 188 logger.severe("Unable to get resource " + CONFIG_PROPS_PATH); |
| 18 | 189 } |
| 190 // store config | |
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191 sc.setAttribute(SERVERCONFIG_KEY, serverConfig); |
| 18 | 192 } |
| 193 // look for database service in context | |
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194 graphDb = (GraphDatabaseService) sc.getAttribute(GRAPHDB_KEY); |
| 18 | 195 if (graphDb == null) { |
| 196 /* | |
| 197 * open database | |
| 198 */ | |
| 199 String dbFn = getResourcePath(sc, graphdbPath); | |
| 200 if (dbFn != null) { | |
| 75 | 201 logger.fine("opening DB " + dbFn); |
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202 GraphDatabaseBuilder graphDbBuilder = new GraphDatabaseFactory().newEmbeddedDatabaseBuilder(dbFn); |
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203 graphDbBuilder.setConfig(GraphDatabaseSettings.allow_store_upgrade, "true"); |
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204 graphDb = graphDbBuilder.newGraphDatabase(); |
| 18 | 205 registerShutdownHook(graphDb); |
| 206 // store in context | |
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207 sc.setAttribute(GRAPHDB_KEY, graphDb); |
| 18 | 208 // AnnotationStore |
| 209 store = new AnnotationStore(graphDb); | |
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210 sc.setAttribute(ANNSTORE_KEY, store); |
| 18 | 211 // admin server |
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212 srv = new WrappingNeoServerBootstrapper((GraphDatabaseAPI) graphDb); |
| 75 | 213 logger.fine("Starting DB admin server..."); |
| 18 | 214 // store in context |
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215 sc.setAttribute(GRAPHDBSRV_KEY, srv); |
| 18 | 216 srv.start(); |
| 217 } else { | |
| 75 | 218 logger.severe("Unable to get resource " + dbFn); |
| 18 | 219 } |
| 22 | 220 } else { |
| 221 // get existing AnnotationStore | |
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222 store = (AnnotationStore) sc.getAttribute(ANNSTORE_KEY); |
| 18 | 223 } |
| 224 /* | |
| 225 * read consumerKeys from webapp | |
| 226 */ | |
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227 consumerKeys = (Properties) sc.getAttribute(CONSUMERKEYS_KEY); |
| 18 | 228 if (consumerKeys == null) { |
| 229 consumerKeys = new Properties(); | |
| 230 InputStream ps = getResourceAsStream(sc, CONSUMER_KEYS_PATH); | |
| 231 if (ps != null) { | |
| 75 | 232 logger.fine("loading consumer keys from " + CONSUMER_KEYS_PATH); |
| 18 | 233 try { |
| 234 consumerKeys.load(ps); | |
| 235 } catch (IOException e) { | |
| 236 // TODO Auto-generated catch block | |
| 237 e.printStackTrace(); | |
| 238 } | |
| 75 | 239 logger.fine("consumer keys: " + consumerKeys); |
| 18 | 240 } else { |
| 75 | 241 logger.severe("Unable to get resource " + CONSUMER_KEYS_PATH); |
| 18 | 242 } |
| 243 // store config | |
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244 sc.setAttribute(CONSUMERKEYS_KEY, consumerKeys); |
| 18 | 245 } |
| 246 } else { | |
| 75 | 247 logger.severe("Unable to get ServletContext!"); |
| 18 | 248 } |
| 249 } | |
| 250 | |
| 251 public abstract String getVersion(); | |
| 252 | |
| 253 /** | |
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254 * @return the authorizationMode |
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255 */ |
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256 public boolean isAuthorizationMode() { |
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257 return authorizationMode; |
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258 } |
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259 |
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260 /** |
| 19 | 261 * @return the store |
| 262 */ | |
| 263 public AnnotationStore getAnnotationStore() { | |
| 264 return store; | |
| 265 } | |
| 266 | |
| 267 /** | |
| 18 | 268 * returns consumer secret for consumer key. returns null if consumer key |
| 269 * doesn't exist. | |
| 270 * | |
| 271 * @param consumerKey | |
| 272 * @return | |
| 273 */ | |
| 274 public String getConsumerSecret(String consumerKey) { | |
| 275 return consumerKeys.getProperty(consumerKey); | |
| 276 } | |
| 277 | |
| 278 /** | |
| 279 * Hole den vollen Benutzernamen aus dem LDAP | |
| 280 * | |
| 281 * @param creator | |
| 282 * @return | |
| 283 */ | |
| 284 public String getFullNameFromLdap(String creator) { | |
| 285 String retString = creator; // falls nichts gefunden wird einfach den | |
| 286 // creator zurueckgeben | |
| 287 if (ldapServerUrl == null) { | |
| 288 return retString; | |
| 289 } | |
| 290 Hashtable<String, String> env = new Hashtable<String, String>(); | |
| 291 String sp = "com.sun.jndi.ldap.LdapCtxFactory"; | |
| 292 env.put(javax.naming.Context.INITIAL_CONTEXT_FACTORY, sp); | |
| 293 env.put(javax.naming.Context.PROVIDER_URL, ldapServerUrl); | |
| 294 | |
| 295 DirContext dctx; | |
| 296 try { | |
| 297 dctx = new InitialDirContext(env); | |
| 298 } catch (NamingException e) { | |
| 75 | 299 logger.warning("Error in getFullNameFromLDAP! "+e); |
| 18 | 300 return retString; |
| 301 } | |
| 302 | |
| 303 String base = "ou=people"; | |
| 304 | |
| 305 SearchControls sc = new SearchControls(); | |
| 306 String[] attributeFilter = { "cn", "mail" }; | |
| 307 sc.setReturningAttributes(attributeFilter); | |
| 308 sc.setSearchScope(SearchControls.SUBTREE_SCOPE); | |
| 309 | |
| 310 String filter = "(uid=" + creator + ")"; | |
| 311 | |
| 312 try { | |
| 313 NamingEnumeration<SearchResult> results = dctx.search(base, filter, sc); | |
| 314 while (results.hasMore()) { | |
| 315 SearchResult sr = (SearchResult) results.next(); | |
| 316 javax.naming.directory.Attributes attrs = sr.getAttributes(); | |
| 317 | |
| 318 Attribute attr = attrs.get("cn"); | |
| 319 retString = (String) attr.get(); | |
| 320 } | |
| 321 } catch (NamingException e) { | |
| 75 | 322 logger.warning("Error in getFullNameFromLDAP!"+e); |
| 18 | 323 } |
| 324 | |
| 325 try { | |
| 326 dctx.close(); | |
| 327 } catch (NamingException e) { | |
| 75 | 328 logger.warning("Error in getFullNameFromLDAP!"+e); |
| 18 | 329 } |
| 330 return retString; | |
| 331 } | |
| 332 | |
| 333 /** | |
| 74 | 334 * returns resource from path as InputStream. |
| 335 * | |
| 336 * Tries path in webapp first, then uses classpath loader. | |
| 337 * Relative paths in webapp start in /WEB-INF/. | |
| 18 | 338 * |
| 339 * @param sc | |
| 340 * @param path | |
| 341 * @return | |
| 342 */ | |
| 343 protected InputStream getResourceAsStream(ServletContext sc, String path) { | |
| 71 | 344 InputStream ps = null; |
| 345 if (sc == null) { | |
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346 // no servlet context -> use class loader |
| 71 | 347 ps = Thread.currentThread().getContextClassLoader().getResourceAsStream(path); |
| 348 } else { | |
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349 // try path in webapp first |
| 74 | 350 String webPath = path; |
| 351 if (!webPath.startsWith("/")) { | |
| 352 // relative path in webapp starts in WEB-INF | |
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353 webPath = "/WEB-INF/" + webPath; |
| 74 | 354 } |
| 355 ps = sc.getResourceAsStream(webPath); | |
| 71 | 356 if (ps == null) { |
| 357 // try as file | |
| 74 | 358 File pf = new File(sc.getRealPath(webPath)); |
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359 if (pf.canRead()) { |
| 75 | 360 logger.fine("trying file for: " + pf); |
| 71 | 361 try { |
| 362 ps = new FileInputStream(pf); | |
| 363 } catch (FileNotFoundException e) { | |
| 75 | 364 logger.severe(e.toString()); |
| 71 | 365 } |
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366 } else { |
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367 // use class loader |
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368 ps = Thread.currentThread().getContextClassLoader().getResourceAsStream(path); |
| 18 | 369 } |
| 370 } | |
| 371 } | |
| 372 return ps; | |
| 373 } | |
| 374 | |
| 375 /** | |
| 376 * get a real file name for a web app file pathname. | |
| 377 * | |
| 378 * If filename starts with "/" its treated as absolute else the path is | |
| 74 | 379 * appended to the /WEB-INF/ directory in the web-app. |
| 18 | 380 * |
| 381 * @param filename | |
| 382 * @param sc | |
| 383 * @return | |
| 384 */ | |
| 385 public static String getResourcePath(ServletContext sc, String filename) { | |
| 386 File f = new File(filename); | |
| 387 // is the filename absolute? | |
| 71 | 388 if (!f.isAbsolute() && sc != null) { |
| 18 | 389 // relative path -> use getRealPath to resolve in webapp |
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390 filename = sc.getRealPath("/WEB-INF/" + filename); |
| 18 | 391 } |
| 392 return filename; | |
| 393 } | |
| 394 | |
| 395 /* | |
| 396 * (non-Javadoc) | |
| 397 * | |
| 398 * @see org.restlet.Application#stop() | |
| 399 */ | |
| 400 @Override | |
| 401 public synchronized void stop() throws Exception { | |
| 402 /* | |
| 403 * trying to clean up databases, not sure if this is the right way... | |
| 404 */ | |
| 405 if (srv != null) { | |
| 75 | 406 logger.info("Stopping DB admin server..."); |
| 18 | 407 srv.stop(); |
| 408 srv = null; | |
| 409 } | |
| 410 if (graphDb != null) { | |
| 75 | 411 logger.info("Stopping DB..."); |
| 18 | 412 graphDb.shutdown(); |
| 413 graphDb = null; | |
| 414 } | |
| 415 super.stop(); | |
| 416 } | |
| 417 | |
| 418 private static void registerShutdownHook(final GraphDatabaseService graphDb) { | |
| 419 // Registers a shutdown hook for the Neo4j instance so that it | |
| 420 // shuts down nicely when the VM exits (even if you "Ctrl-C" the | |
| 421 // running example before it's completed) | |
| 422 Runtime.getRuntime().addShutdownHook(new Thread() { | |
| 423 @Override | |
| 424 public void run() { | |
| 425 graphDb.shutdown(); | |
| 426 } | |
| 427 }); | |
| 428 } | |
| 429 | |
| 430 } |